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Connect n8n AI agents to a NZ phone number, SMS and email

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Short answer

In n8n, attach an MCP Client Tool node to your AI Agent node, set its endpoint to https://agentline.nz/mcp and its authentication to Bearer with your Agentline NZ API key. The AI Agent can then text from a New Zealand 028 number, read and send email and wait for one-time codes inside your workflows.

Before you start

  • An Agentline NZ API key from Dashboard → API keys. Start free with an email inbox (no card), or take a 7-day trial of Starter or Pro to get a number.
  • Your 028 number is set up within a few days of signup. Your email inbox works straight away.
  • A workflow with an AI Agent node.

Steps

  1. Add the MCP Client Tool. On your AI Agent node, add a tool and choose MCP Client Tool.
  2. Set the endpoint. Enter https://agentline.nz/mcp as the endpoint. If the node shows a transport option, choose the HTTP Streamable option.
  3. Add your key. Set Authentication to Bearer and create a Bearer credential with your Agentline NZ API key. Header Auth with the name Authorization and the value Bearer followed by your key also works.
  4. Choose tools. Under Tools to Include, pick All, or Selected to limit the agent to, for example, list_messages and wait_for_code.
  5. Test the workflow. Run the workflow with a chat message such as: What's my Agentline NZ number?

Using a tool as a normal workflow step

n8n's newer MCP Client node runs one MCP tool as an ordinary step without an AI Agent, which is useful for fixed flows like "send this confirmation text". Set MCP Endpoint URL to https://agentline.nz/mcp, pick your credential under Authentication and choose the Tool, for example send_sms.

Good to know

  • Use Selected under Tools to Include to keep read-only workflows from sending.
  • Transactional and assistant messages only: replies, bookings, confirmations, reminders people asked for, and codes.

FAQ

What does Agentline NZ cost?

Starter is NZ$29/month and Pro is NZ$79/month, billed in NZ dollars. Start free with an email inbox (no card), or take a 7-day trial of Starter or Pro to get a number. Agentline NZ is not GST-registered, so no GST is charged.

How long does it take to get the 028 number?

Your 028 number is set up within a few days of signup. Your email inbox works straight away. Full refund if your number hasn't arrived within 30 days of paying.

Can my assistant send marketing or bulk texts?

No. Transactional and assistant messages only: replies, bookings, confirmations, reminders people asked for, and codes. Marketing, promotions, cold texts and bulk texts are blocked. See What we don't allow.

Start free · Start free with an email inbox (no card), or take a 7-day trial of Starter or Pro to get a number.